A fuel cell is an electrochemical device used to create electricity. Much like a battery, it converts chemical energy to electrical energy. But unlike a typical battery, which holds a limited fuel supply in a sealed container, a fuel cell uses an ongoing supply of fuel to create a continuous flow of electricity. Fuels like natural gas and methane gas are used to produce hydrogen and oxygen. The hydrogen and oxygen are then fed to two terminals in the fuel cell to cause a chemical reaction that produces electricity with heat and water as byproducts. Learn more about fuel cells.
An electrochemical cell which produces electricity by oxidation of fuel (hydrogen-oxygen or zinc-air); with minimal heat loss & high efficiencies.
A battery where reactants are supplied to the cell from an external source. An example is the H2 / O2 fuel cell, in which these gases react (in separate half-reactions at separate electrodes) to form protons and hydroxide, which are combined to form water.
A device that produces electricity without combustion by combining hydrogen and oxygen.
Go to Materials & Technology A fuel cell produces electricity and heat by an electrochemical process that converts hydrogen and oxygen into water.
Devices that convert the chemical energy of fuels directly into electricity.
Mechanical devices that use hydrogen or hydrogen-containing fuel such as methane to produce an electric current. Fuel cells are clean, quiet, and highly efficient sources of electricity.
a device that converts hydrogen and oxygen into water, producing heat and energy which can be used to power motors, lights, or other electrical devices. Depending on the type, they may in the future be used to power everything from automobiles to homes to large power plants.
Like batteries, fuel cells convert chemical energy into electricity, from an on-board energy source. In the past, fuel cells were used for space missions--recent efforts have made the use of fuel cells in vehicles a reality. This technology is perhaps most promising.
Fuel cells produce electricity from hydrogen and air, with water as the only emission. Potential applications include stationary power generation, transport (replacing the internal combustion engine) and portable power (replacing batteries in mobile phones).
One or more cells capable of generating an electrical current by converting the chemical energy of a fuel directly into electrical energy. Fuel cells differ from conventional electrical cells in that the active materials such as fuel and oxygen are not contained within the cell but are supplied from outside.
A device that produces electricity directly from a chemical reaction between oxygen and a gaseous fuel such as hydrogen or carbon monoxide. A unit of a device that supplies the fuel typically for locomotion.